#shopping-cart-summary-bottom-bar {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    text-align: center;
    padding: 20px;
    z-index: 9999;
    background-color: white;
    border-top: 1px solid lightgrey;
    box-shadow: 4px 4px 8px 4px rgba(0, 0, 0, .2);
}

#shopping-cart-summary-bottom-bar > div {
    display: flex;
    width: 500px;
    margin: auto;
    text-align: center;
    justify-content: space-between;
    align-items: baseline
}

@media (max-width: 500px) {
    #shopping-cart-summary-bottom-bar > div {
        width: auto;
    }
}

@media (max-width: 350px) {
    #shopping-cart-summary-bottom-bar > div {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    #shopping-cart-summary-bottom-bar > div > * {
        margin-bottom: 10px;
    }
}

@media (min-width: 768px) {
    #shopping-cart-summary-bottom-bar {
        font-size: calc(100% + 2px);
    }
}